Launched in 2014, [email protected] SideM began the spin-off of the idol franchise with male characters, starring in a Cinderella Girls style mobage social game. Veterans of the fictional all-male idol unit 961 Production (Shota Mitarai, Amagase Toma and Hokuto Ijuin) joined the guys of 315 Production for the extensive cast. The Persona series' Shuji Sogabe provides character designs for the doctors, lawyers, Self-Defence Force officers and part-time workers turned male idols.